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| author | Trond Myklebust | 2017-04-27 14:50:51 +0200 |
|---|---|---|
| committer | Trond Myklebust | 2019-07-06 20:54:50 +0200 |
| commit | 612b41f808a98a124b23d72229693c3181733291 (patch) | |
| tree | ff691ddc80892858312a7aa0ce43e1c4286e63ad /net/sunrpc | |
| parent | SUNRPC: Add basic load balancing to the transport switch (diff) | |
| download | kernel-qcow2-linux-612b41f808a98a124b23d72229693c3181733291.tar.gz kernel-qcow2-linux-612b41f808a98a124b23d72229693c3181733291.tar.xz kernel-qcow2-linux-612b41f808a98a124b23d72229693c3181733291.zip | |
SUNRPC: Allow creation of RPC clients with multiple connections
Add an argument to struct rpc_create_args that allows the specification
of how many transport connections you want to set up to the server.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/clnt.c | 17 | ||||
| -rw-r--r-- | net/sunrpc/xprtmultipath.c | 3 |
2 files changed, 17 insertions, 3 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 976eab68bb5d..b6aca8cb5ae6 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -528,6 +528,8 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args) .bc_xprt = args->bc_xprt, }; char servername[48]; + struct rpc_clnt *clnt; + int i; if (args->bc_xprt) { WARN_ON_ONCE(!(args->protocol & XPRT_TRANSPORT_BC)); @@ -590,7 +592,15 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args) if (args->flags & RPC_CLNT_CREATE_NONPRIVPORT) xprt->resvport = 0; - return rpc_create_xprt(args, xprt); + clnt = rpc_create_xprt(args, xprt); + if (IS_ERR(clnt) || args->nconnect <= 1) + return clnt; + + for (i = 0; i < args->nconnect - 1; i++) { + if (rpc_clnt_add_xprt(clnt, &xprtargs, NULL, NULL) < 0) + break; + } + return clnt; } EXPORT_SYMBOL_GPL(rpc_create); @@ -2730,6 +2740,10 @@ int rpc_clnt_test_and_add_xprt(struct rpc_clnt *clnt, return -ENOMEM; data->xps = xprt_switch_get(xps); data->xprt = xprt_get(xprt); + if (rpc_xprt_switch_has_addr(data->xps, (struct sockaddr *)&xprt->addr)) { + rpc_cb_add_xprt_release(data); + goto success; + } task = rpc_call_null_helper(clnt, xprt, NULL, RPC_TASK_SOFT|RPC_TASK_SOFTCONN|RPC_TASK_ASYNC|RPC_TASK_NULLCREDS, @@ -2737,6 +2751,7 @@ int rpc_clnt_test_and_add_xprt(struct rpc_clnt *clnt, if (IS_ERR(task)) return PTR_ERR(task); rpc_put_task(task); +success: return 1; } EXPORT_SYMBOL_GPL(rpc_clnt_test_and_add_xprt); diff --git a/net/sunrpc/xprtmultipath.c b/net/sunrpc/xprtmultipath.c index 394e427533be..9d66ce53355d 100644 --- a/net/sunrpc/xprtmultipath.c +++ b/net/sunrpc/xprtmultipath.c @@ -52,8 +52,7 @@ void rpc_xprt_switch_add_xprt(struct rpc_xprt_switch *xps, if (xprt == NULL) return; spin_lock(&xps->xps_lock); - if ((xps->xps_net == xprt->xprt_net || xps->xps_net == NULL) && - !rpc_xprt_switch_has_addr(xps, (struct sockaddr *)&xprt->addr)) + if (xps->xps_net == xprt->xprt_net || xps->xps_net == NULL) xprt_switch_add_xprt_locked(xps, xprt); spin_unlock(&xps->xps_lock); } |